Pen



FIG 1 is a front perspective view of a pen showing our new design;

FIG. 2 is a detailed view of the pen shown in FIG. 1;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a detailed view of the pen shown in FIG. 4;

FIG. 6 is a side elevation view thereof;

FIG. 7 is a detailed view of the pen shown in FIG. 6;

FIG. 8 is another side elevation view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a detailed view of the pen shown in FIG. 9;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a detailed view of the pen shown in FIG. 11;

FIG. 13 is a front perspective view of the pen with the point retracted;

FIG. 14 is a back elevation view thereof;

FIG. 15 is a front elevation view thereof;

FIG. 16 is a side elevation view thereof;

FIG. 17 is another side elevation view thereof;

FIG. 18 is a top plan view thereof; and,

FIG. 19 is a bottom plan view thereof. 

CLAIM The ornamental design for a pen, as shown and described. 